CN107527760B - Locking device of circuit breaker - Google Patents
Locking device of circuit breaker Download PDFInfo
- Publication number
- CN107527760B CN107527760B CN201610451567.XA CN201610451567A CN107527760B CN 107527760 B CN107527760 B CN 107527760B CN 201610451567 A CN201610451567 A CN 201610451567A CN 107527760 B CN107527760 B CN 107527760B
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- Prior art keywords
- lock
- circuit breaker
- baffle
- main
- mounting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/287—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member wherein the operating part is made inaccessible or more difficult to access by a lid, cover or guard, e.g. lockable covers
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The locking device of circuit breaker is including the main lock that is used for locking the push rod of circuit breaker and the vice lock that is used for locking the main lock, main lock and vice lock all include lock body and lock core, and rotatable lock core is installed to the axial of the lock body of main lock and vice lock, and the one end and the lock body of lock core rotate to be connected, and seted up the lockhole on this tip, and the other end of lock core stretches out the lock body, and the end that stretches out of the lock core of main lock cooperatees with the locking push rod with the push rod, and the baffle of the linkage is served in stretching out of the lock core of vice lock, the baffle is located the top of the lockhole of main lock, and the lockhole that the main lock can be dodged or shelter. The invention provides a locking device of a circuit breaker, which is simple in structure, safe and reliable.
Description
Technical Field
The invention relates to the field of low-voltage electrical appliances, in particular to a locking device of a circuit breaker.
Background
The conventional universal circuit breaker can be provided with a locking device with a key, the locking device is positioned above an operating mechanism cover plate inside a large face shield of the circuit breaker, a push rod behind a switching button can be locked, and the function of non-releasable switching-on after the circuit breaker stores energy is realized through the transmission relation inside the operating mechanism. However, the locking device with a key, which is equipped with the conventional master circuit breaker, can only realize the locking of a single key, and cannot meet the requirements once a user needs to realize the multi-stage locking or the multi-stage locking of the circuit breaker.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a locking device of a circuit breaker, which has a simple structure and is safe and reliable.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a locking device of circuit breaker, is including the main lock 2 that is used for locking the push rod of circuit breaker 1 and the vice lock 3 that is used for locking main lock 2, main lock 2 and vice lock 3 all include lock body and lock core, and rotatable lock core is installed to the axial of the lock body of main lock 2 and vice lock 3, and the one end and the lock body of lock core rotate to be connected, and has seted up the lockhole on this tip, and the other end of lock core stretches out the lock body, and the end that stretches out of the lock core 21 of main lock 2 cooperatees with the locking push rod with the push rod, and the end that stretches out of the lock core 31 of vice lock 3 is equipped with the baffle 4 of linkage, baffle 4 is located the lockhole 22's of main lock 2 top, but baffle 4 rotates lockhole or shelters from the lockhole 22 of main lock 2.
Preferably, main lock 2 is installed on casing 11 of circuit breaker 1, and one end matches with the push rod in stretching into circuit breaker 1, and the other end has the lateral wall of lockhole 22 protrusion casing 11, vice lock 3 is installed and is located one side of main lock 2 on the outer wall of casing 11, and the parallel staggered floor setting of lock core of main lock 2 and vice lock 3, baffle 4 sets up between the lock core of main lock 2 and vice lock 3, and the one end of baffle 4 is connected perpendicularly on the lock core 31 of vice lock 3, and the other end of baffle 4 is located the top of lockhole 22 of main lock 2.
Preferably, the auxiliary lock 3 is installed on the outer wall of the housing 11 of the circuit breaker 1 through the installation support 5, the installation support 5 includes a first installation plate 51 and a second installation plate 52 which are arranged at a parallel interval, two connection plates 53 which are respectively connected at two ends are arranged between the first installation plate 51 and the second installation plate 52, wherein the first installation plate 51 is fixed on the outer wall of the housing 11, the second installation plate 52 is provided with an installation hole 52a for installing the lock body 30 of the auxiliary lock 3, the lock body 30 of the auxiliary lock 3 penetrates through the installation hole 52a to extend into the installation support 5 so that two ends of the lock cylinder 31 of the auxiliary lock 3 are located at two sides of the second installation plate 52, one end of the baffle 4 is connected to the built-in end of the lock cylinder 31 of the auxiliary lock 3 which is arranged in the installation support 5, and the other end of the baffle 4.
Preferably, the first mounting plate 51 is provided with a cross-shaped channel 51a, so that the first mounting plate 51 is divided into four independent mounting blocks 51b distributed at four corners, and each mounting block 51b is provided with a fixing hole 51 c.
Preferably, the two connecting plates 53 are located between the two mounting blocks 51b, and each of the two connecting plates extends towards the mounting direction of the mounting bracket 5 to form two supporting protrusions 53a, and the end surfaces of the supporting protrusions 53a are flush with the outer side surfaces of the mounting blocks 51 b.
Preferably, the lock body 30 of the secondary lock 3 is placed on the inner end of the mounting bracket 5, and the first nut 33 for fastening is installed on the inner end, and when the secondary lock 3 is assembled, the lock body passes through the mounting hole 52a, and the first nut 33 is sleeved on the inner end, placed in the mounting bracket 5, of the lock body 30 of the secondary lock 3, so that the lock body 30 of the secondary lock 3 is fixed on the second mounting plate 52.
Preferably, the baffle 4 is fixed on the lock cylinder 31 of the secondary lock 3, and a hole at the end of the baffle 4 is sleeved on the lock cylinder 31 of the secondary lock 3 and abutted against the lock body 30 of the secondary lock 3, and is fastened on the lock cylinder 31 of the secondary lock 3 through a second nut 34 to form a limit fixation.
Preferably, the baffle 4 is provided with a circular shielding portion 41, and the shape and size of the shielding portion 41 are matched with the shape and size of the lock body 20 of the main lock 2.
Preferably, the cross-sectional shape of the supporting protrusion 53a is square, and the supporting protrusion is spaced from the mounting blocks 51b on two sides, and the length of the supporting protrusion 53a is smaller than the distance between the mounting blocks 51b on two sides.
Preferably, the second mounting plate 52 and the connecting plate 53 are flush with each other on their sides, and protrude from the sides of the first mounting plate 51 such that notches 54 are formed between the first mounting plate 51 and the connecting plate 53 on both sides of the first mounting plate 51.
According to the locking device of the circuit breaker, the multi-stage locking or the multi-stage locking at the same level of the opening of a single circuit breaker is realized by adopting the split type arrangement of the main lock and the auxiliary lock, the main lock and the auxiliary lock are not in direct contact, and the unlocking operation of the main lock can be realized only by the baffle rotating synchronously with the auxiliary lock, so that the locking device of the circuit breaker is simple and reliable in structure, convenient to disassemble and assemble, flexible to apply and wide in application range, and in addition, the main lock is shielded to be locked, so that the unlocking operation of the main lock can be more visual, time and labor are saved, and the. The circuit breaker that only uses single locking structure to the current is convenient for improve, need not to change the transmission structure of locking structure and circuit breaker.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker and locking device of the present invention;
fig. 2 is a schematic diagram of the circuit breaker and primary lock of the present invention;
FIG. 3 is a front perspective view of the locking device of the present invention;
FIG. 4 is a rear perspective view of the locking device of the present invention;
FIG. 5 is a schematic structural view of the mounting bracket of the present invention;
FIG. 6 is a schematic illustration of the locked state of the primary and secondary locks of the present invention;
FIG. 7 is a schematic illustration of the locked and unlocked states of the primary lock of the present invention;
fig. 8 is a schematic view of the internal structure of the circuit breaker in the unlocked state of the main lock according to the present invention;
fig. 9 is a schematic view of the internal structure of the circuit breaker in the locked state of the main lock of the present invention;
fig. 10 is a cross-sectional view taken along line a of fig. 9 of the present invention.
Detailed Description
The following describes a specific embodiment of the locking device of the circuit breaker according to the present invention with reference to the embodiments shown in fig. 1 to 10. The locking device of the circuit breaker of the present invention is not limited to the description of the following embodiments.
As shown in fig. 1, the locking device of the circuit breaker of the present invention comprises a main lock 2 for locking a push rod of an operating mechanism of the circuit breaker 1 and an auxiliary lock 3 for locking the main lock 2, wherein the main lock 2 and the auxiliary lock 3 each comprise a lock body and a lock cylinder, the lock bodies of the main lock 2 and the auxiliary lock 3 are axially provided with rotatable lock cylinders, one end of each lock cylinder is rotatably connected with the lock body, and the end part is provided with a lock hole, the other end of the lock core extends out of the lock body, the extending end of the lock core of the main lock 2 is matched with the push rod, the locking push rod is stopped at the brake separating position, the extension end of the lock core of the auxiliary lock 3 is provided with a linked baffle 4, the baffle 4 is positioned above the lock hole of the main lock 2, and can be inserted into the lock hole of the auxiliary lock 3 through a matched key to rotate the lock core of the auxiliary lock 3, the baffle 4 is driven by the lock core of the auxiliary lock 3 to rotate to avoid or shield the lock hole of the main lock 2, so that the main lock 2 is locked. Adopt split type setting to realize the multistage locking or the many locks at the same level of circuit breaker separating brake through main lock and vice lock, no direct contact only realizes through the baffle with vice lock synchronous rotation between main lock and the vice lock whether the main lock can carry out the operation of unblanking, simple structure and reliable, the dismouting of being convenient for, use is nimble, application scope is wide, in addition to the locking of main lock sheltering from the formula for whether the main lock can carry out the operation of unblanking more directly perceived, labour saving and time saving, the security is higher. As shown in fig. 1, when a key matched with the secondary lock 3 is inserted and rotates clockwise, the lock cylinder of the secondary lock 3 drives the baffle 4 to rotate, so that the baffle 4 forms an included angle with the horizontal stroke, the function of avoiding the primary lock 2 is realized, and the function of shielding the primary lock 2 can be realized in the reverse process of the actions. The secondary lock of the locking device of the invention is not limited to one, thereby realizing double locking, and can also be a plurality of secondary locks to realize multiple locking.
Specifically, as shown in fig. 2 and 3, the main lock 2 includes a first lock body 20 and a first lock cylinder 21, the first lock body 20 is axially provided with the rotatable first lock cylinder 21, one end of the first lock cylinder 21 is rotatably connected with the first lock body 20, and the end is provided with a first lock hole 22, and the other end of the first lock cylinder 21 extends out of the first lock body 20; the auxiliary lock 3 comprises a second lock body 30 and a second lock cylinder 31, the second lock cylinder 31 is axially mounted on the second lock body 30 and can rotate, one end of the second lock cylinder 31 is rotatably connected with the second lock body 30, a second lock hole 32 is formed in the end of the second lock cylinder 31, and the other end of the second lock cylinder 31 extends out of the second lock body 30.
As shown in fig. 1 and 2, in the installation structure of the circuit breaker and the locking device of the invention, a main lock 2 is installed on a housing 11 of the circuit breaker 1 above an opening button 12, one end of the main lock extends into the circuit breaker 1 to be matched with a push rod, the other end of the main lock is provided with a first lock hole 22 protruding out of the outer side wall of the housing 11, an auxiliary lock 3 is installed on the outer wall of the housing 11 and located on one side of the main lock 2 and above a closing button 13, the first lock core 21 and a second lock core 31 are arranged in parallel and staggered layers, a baffle 4 is arranged between the first lock core 21 and the second lock core 31, one end of the baffle 4 is vertically connected to the second lock core 31, and the other end of the baffle 4 is. Simple structure and rationally distributed compactness, the action time mutual noninterference improves the reliability. Normally, the main lock 2 can be placed in a locked state only by pressing the opening button 12 of the circuit breaker 1; after the main lock 2 is locked and the key is pulled out, the auxiliary lock 3 can be placed in the locked state. When the circuit breaker 1 is in a locked state, because the opening push rod behind the opening button 12 is locked, the closing button 13 is pressed through the linkage relation of the operating mechanism lever in the circuit breaker 1, and the circuit breaker 1 cannot be closed, so that the locking function of the circuit breaker 1 is realized. The shutter 4 is provided with a circular shielding portion 41, and the shape and size of the shielding portion 41 match those of the first lock member 20. The lock hole is completely covered and shielded, the locking reliability is improved, and foreign objects are effectively prevented from entering the lock hole to cause damage.
As shown in fig. 1 and 5, the mounting bracket of the present invention has a structure in which the secondary lock 3 is mounted on the outer wall of the housing 11 of the circuit breaker 1 through the mounting bracket 5, the mounting bracket 5 is an integrally formed structure processed by steel and includes a first mounting plate 51 and a second mounting plate 52 arranged in parallel and spaced apart from each other, two connecting plates 53 respectively connected to both ends are provided between the first mounting plate 51 and the second mounting plate 52, wherein, the first mounting plate 51 is fixed on the outer wall of the housing 11, the second mounting plate 52 is provided with a mounting hole 52a, the second lock body 30 is used for installing the second lock body 30, the second lock body 30 penetrates through the installation hole 52a and extends into the installation support 5, so that the two ends of the second lock body 30 and the two ends of the second lock cylinder 31 are both positioned on the two sides of the second installation plate 52, one end of the baffle plate 4 is connected to the built-in end, arranged in the installation support 5, of the second lock cylinder 31, and the other end of the baffle plate 4 extends out of the installation support 5. Realize through the installing support that vice lock is installed outside the housing of circuit breaker, simple structure and firm makes things convenient for the dismouting, and the circuit breaker need not additionally to add simultaneously with vice lock matched with mounting structure, simplifies the structure of circuit breaker housing, and the setting of vice lock does not influence laying of circuit breaker housing inner structure. Specifically, the first mounting plate 51 is provided with a cross-shaped channel 51a, so that the first mounting plate 51 is divided into four independent mounting blocks 51b distributed at four corners, each mounting block 51b is provided with a fixing hole 51c, and the bracket 5 can be fixed by passing screws through the housing 11 and the fixing holes 51c in sequence. The cross-shaped channel is convenient for screwing screws during assembly, and the convenience and the efficiency of assembly are improved. In addition, the two connecting plates 53 are extended in the mounting direction of the mounting bracket 5 to form two supporting protrusions 53a at the portion between the two mounting blocks 51b, and the end surfaces of the supporting protrusions 53a are flush with the outer side surfaces of the mounting blocks 51 b. The setting of supporting protrusion plays support and spacing effect, improves the fastness and the convenience of assembly. The cross-sectional shape of the supporting projection 53a is square, and the supporting projection 53a is spaced from the mounting blocks 51b on both sides, and the length of the supporting projection 53a is smaller than the distance between the mounting blocks 51b on both sides. Also, the second mounting plate 52 is flush with the side of the connecting plate 53, and protrudes the side of the first mounting plate 51 such that notches 54 are formed between the first mounting plate 51 and the connecting plate 53 on both sides of the first mounting plate 51.
According to the fixing structure of the auxiliary lock and the mounting bracket, the first nut 33 for fastening is mounted on the inner end of the second lock body 30, which is arranged in the mounting bracket 5, and when the fixing structure is assembled, the second lock body passes through the mounting hole 52a, and the first nut 33 is sleeved on the inner end of the second lock body 30, which is arranged in the mounting bracket 5, so that the second lock body 30 is fixed on the second mounting plate 52. The fastening mode is simple, and convenient operation improves assembly efficiency and fastness.
According to the fixing structure of the baffle and the auxiliary lock, the baffle 4 is fixed on the second lock cylinder 31, the hole at the end part of the baffle 4 is sleeved on the second lock cylinder 31 and is abutted against the second lock body 30, and the baffle is fastened on the second lock cylinder 31 through the second nut 34 to form limiting fixation. The baffle fixed mounting's setting, simple structure and firm, convenient assembly improves the synchronism and the uniformity of action.
The action process of the present invention is shown in fig. 6, and the primary lock 2 and the secondary lock 3 are both in the locked state. The key of the secondary lock 3 is in a locked state perpendicular to the horizontal plane, and the key of the secondary lock 3 can be freely pulled out of or inserted into the second locking hole 32 of the secondary lock 3. The baffle 4 is fixed on the inner end of the second lock cylinder 31 arranged in the mounting bracket 5 and rotates along with the rotation of the second lock cylinder 31, and the direction of the baffle 4 is vertical to the handle direction of the key of the secondary lock 3. When the secondary lock 3 is in the locked state, the shielding portion 41 of the shutter 4 covers just above the first keyhole 22 of the primary lock 2 so that the key of the primary lock 2 cannot be inserted into the first keyhole 22. In the state shown in fig. 6, the key of the secondary lock 3 is inserted into the second keyhole 32 and then rotated clockwise, so that the second key cylinder 31 rotates the shutter 4, and the shielding portion 41 of the shutter 4 rotates in the axial direction of the second key cylinder 31 to avoid the first keyhole 22 of the primary lock 2. As shown in fig. 7, the primary lock 2 is in the locked state and the secondary lock 3 is in the unlocked state. Then, after the key of the main lock 2 is inserted into the first lock hole 22, the opening button 12 is pressed, and the key of the main lock 2 is rotated clockwise, so that the first lock core 20 drives the corresponding lever to rotate for a certain angle inside the circuit breaker 1, and then the unlocking effect is achieved, and at this time, the circuit breaker 1 can be switched on by pressing the switching-on button 13.
As shown in fig. 8-10, in the locking structure of the main lock and the push rod of the circuit breaker of the present invention, the main lock 2 is fixedly installed on the cover plate 14 through a bracket 23, a linked locking baffle 24 is installed on an end portion of the first lock cylinder 21 of the main lock 2 for locking the opening push rod 15 of the circuit breaker 1, a limit bump 24a matched with the opening push rod 15 is arranged on the locking baffle 24, and a limit step 15a matched with the limit bump 24a is arranged on the opening push rod 15. As shown in fig. 8, when the main lock 2 is in the unlocked state, the opening button 12 is pressed to push the opening push rod 15 to horizontally move backward, at this time, the limit step 15a on the opening push rod 15 moves backward synchronously, the key for rotating the main lock 2 drives the first lock cylinder 21 to rotate counterclockwise, so as to drive the locking baffle 24 to rotate to the locked position, the limit bump 24a of the locking baffle 24 just abuts against the front of the limit step 15a of the opening push rod 15 to play a role in limiting and locking, at this time, the main lock 2 is in the locked state as shown in fig. 9 and 10, and the operating mechanism of the circuit breaker 1 is locked and cannot be switched on.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A locking device of a circuit breaker is characterized in that: the circuit breaker locking device comprises a main lock (2) used for locking a push rod of a circuit breaker (1) and an auxiliary lock (3) used for locking the main lock (2), wherein the main lock (2) and the auxiliary lock (3) respectively comprise lock bodies (20, 30) and lock cylinders (21, 31), the lock bodies (20, 30) of the main lock (2) and the auxiliary lock (3) are axially provided with rotatable lock cylinders (21, 31), one ends of the lock cylinders (21, 31) are rotatably connected with the lock bodies (20, 30), the end parts of the lock cylinders (21, 31) are provided with lock holes (22, 32), the other ends of the lock cylinders (21, 31) extend out of the lock bodies (20, 30), the extending end of the lock cylinder (21) of the main lock (2) is matched with the push rod to lock the push rod, the extending end of the lock cylinder (31) of the auxiliary lock (3) is provided with a linkage baffle (4), the baffle (4) is positioned above the lock hole (22) of the main lock (2), and the baffle (4) is driven by the lock cylinder (31) of the auxiliary lock cylinder (, to achieve locking of the primary lock (2);
the circuit breaker is characterized in that the main lock (2) is installed on a housing (11) of the circuit breaker (1), one end of the main lock extends into the circuit breaker (1) to be matched with the push rod, the other end of the main lock is provided with a lock hole (22) protruding out of the outer side wall of the housing (11), the auxiliary lock (3) is installed on the outer side wall of the housing (11) of the circuit breaker (1) through an installation support (5) and located on one side of the main lock (2), lock cylinders (21 and 31) of the main lock (2) and the auxiliary lock (3) are arranged in a staggered mode in parallel, the baffle (4) is arranged between the lock cylinders (21 and 31) of the main lock (2) and the auxiliary lock (3), one end of the baffle (4) is vertically connected to the lock cylinder (31) of the auxiliary lock (3), and the other end of the baffle (4);
installing support (5) are including first mounting panel (51), and first mounting panel (51) are fixed on the outer wall of housing (11), are equipped with cross channel (51a) on first mounting panel (51) for four independent installation pieces (51b) that the four corners distributes are separated into in first mounting panel (51), all are equipped with fixed orifices (51c) on every installation piece (51 b).
2. The locking device of a circuit breaker according to claim 1, wherein: installing support (5) include with second mounting panel (52) that first mounting panel (51) parallel interval set up, be equipped with between first mounting panel (51) and the second mounting panel (52) and connect two connecting plates (53) at both ends respectively, wherein, mounting hole (52a) have been seted up in second mounting panel (52), a lock body (30) for installing vice lock (3), lock body (30) of vice lock (3) pass mounting hole (52a) and stretch into in installing support (5) and make the both ends of lock core (31) of vice lock (3) be located the both sides of second mounting panel (52), the one end of baffle (4) is connected and is arranged in the built-in end of installing support (5) in lock core (31) of vice lock (3), the other end of baffle (4) stretches out installing support (5).
3. The locking device of a circuit breaker according to claim 2, wherein: the parts of the two connecting plates (53) between the two mounting blocks (51b) extend towards the mounting direction of the mounting bracket (5) to form two supporting bulges (53a), and the end surfaces of the supporting bulges (53a) are flush with the outer side surfaces of the mounting blocks (51 b).
4. The locking device of a circuit breaker according to claim 2, wherein: the lock body (30) of the auxiliary lock (3) is arranged at the inner end of the mounting bracket (5) and provided with a first nut (33) for fastening, during assembly, the lock body of the auxiliary lock (3) penetrates through the mounting hole (52a), and the first nut (33) is sleeved on the inner end of the auxiliary lock (3) arranged in the mounting bracket (5), so that the lock body (30) of the auxiliary lock (3) is fixed on the second mounting plate (52).
5. The locking device of a circuit breaker according to claim 2, wherein: the lock is characterized in that the baffle (4) is fixed on the lock cylinder (31) of the auxiliary lock (3), a hole at the end part of the baffle (4) is sleeved on the lock cylinder (31) of the auxiliary lock (3) and abutted against the lock body (30) of the auxiliary lock (3), and the baffle is fastened on the lock cylinder (31) of the auxiliary lock (3) through a second nut (34) to form limiting fixation.
6. The locking device of a circuit breaker according to claim 1, wherein: the baffle (4) is provided with a circular shielding part (41), and the shape and the size of the shielding part (41) are matched with those of the lock body (20) of the main lock (2).
7. The locking device of a circuit breaker according to claim 3, wherein: the cross section of the supporting protrusion (53a) is square, the supporting protrusion and the mounting blocks (51b) on the two sides are arranged at intervals, and the length of the supporting protrusion (53a) is smaller than the distance between the mounting blocks (51b) on the two sides.
8. The locking device of a circuit breaker according to claim 2, wherein: the side surfaces of the second mounting plate (52) and the connecting plate (53) are flush, and protrude out of the side surface of the first mounting plate (51), so that notches (54) located at two sides of the first mounting plate (51) are formed between the first mounting plate (51) and the connecting plate (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610451567.XA CN107527760B (en) | 2016-06-21 | 2016-06-21 | Locking device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610451567.XA CN107527760B (en) | 2016-06-21 | 2016-06-21 | Locking device of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107527760A CN107527760A (en) | 2017-12-29 |
| CN107527760B true CN107527760B (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610451567.XA Active CN107527760B (en) | 2016-06-21 | 2016-06-21 | Locking device of circuit breaker |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101387B (en) * | 2022-07-25 | 2022-11-01 | 深圳市脉联电子有限公司 | Electric shock prevention structure of circuit breaker, circuit breaker and distributor |
| CN116190167B (en) * | 2023-05-04 | 2023-07-07 | 深圳市脉联电子有限公司 | Electric shock prevention structure and circuit breaker thereof |
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| CN103545130A (en) * | 2012-07-09 | 2014-01-29 | 厦门宏发开关设备有限公司 | Circuit breaker opening and locking mechanism |
| CN203452495U (en) * | 2013-07-15 | 2014-02-26 | 湖南雁能森源电力设备有限公司 | Device for improving protection level of switching operation hole of switch cabinet |
| CN205789580U (en) * | 2016-06-21 | 2016-12-07 | 浙江正泰电器股份有限公司 | The locking device of chopper |
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| CN107527760A (en) | 2017-12-29 |
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